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Immunologic markers, uveitis, and keratoconjunctivitis sicca associated with human T-cell lymphotropic virus type 1

By Sonia Regina Almeida Alves Pinheiro, Olindo Assis Martins Filho, Jo??o Gabriel Rodrigues Ribas, Bernadette Corr??a Catalan Soares, Fernando Augusto Proietti, Sueli Namen Lopes, Gustavo Eust??quio Brito Alvim de Melo and Anna B??rbara Freitas Carneiro

Abstract

PURPOSE: To verify the occurrence of keratoconjunctivitis sicca (KCS) and human T-cell lymphotropic virus type 1 (HTLV-1) associated uveitis (HAU) and to evaluate the immunologic status related to HTLV-1. DESIGN: Cross-sectional study. METHODS: Ophthalmic examination (both eyes) and immunophenotyping of peripheral blood lymphocytes were performed in 207 infected asymptomatic blood donors (AS), 55 controls (NI), and 55 patients with HTLV-1 associated myelopathy (HAM/TSP). Examiner was masked to patient's serologic status. RESULTS: KCS was more frequent in HAM/TSP (30/55, 54.5%) than in NI and AS (07/55, 12.7% and 42/207, 20.3%, respectively). Presence of lacrimal hyposecretion in KCS individuals was higher in the HAM/TSP group (P < .001) as compared with NI and AS. HAU was found in 1/55 (1.82%) of HAM/TSP patients and 4/207 (1.93%) of HTLV-1 seropositive donors. Higher levels of activated CD4(+) and CD8(+) T cells were observed in HAM/TSP. Patients with HAU displayed higher percentage of both CD4(+) HLA-DR(+) and CD8(+)HLA-DR(+) when compared with NI and AS without HAU. CONCLUSIONS: Patients with HAM/TSP manifested more ophthalmologic symptoms than asymptomatic HTLV-1-infected individuals, with significantly higher KCS and immunologic alterations. Levels of activated CD8+ T cells could be used as a prognosis marker of inflammatory disease manifestation to follow-up AS individuals

Topics: leukemia/lymphom
Publisher: Elsevier Science
Year: 2006
OAI identifier: oai:agregador.ibict.br.RI_FIOCRUZ:oai:localhost:icict/7207
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